Bromine and iodine-cucurbit[6]uril complexes: preparation and applications in synthetic organic chemistry

Autor:	Luiz F. Silva, Thiago de Souza Cavallini, K. R. K. K. Reddy, Grégoire Jean-François Demets
Rok vydání:	2014
Předmět:	Bromine Radical substitution Cyclohexene Halogenation chemistry.chemical_element General Chemistry Catalysis chemistry.chemical_compound chemistry COMPOSTOS ORGÂNICOS Halogen Electrophile Materials Chemistry Organic chemistry Benzene
Zdroj:	Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP
Popis:	Iodine and bromine inclusion compounds were easily prepared by gas diffusion of the halogens using finely powdered CB[6]. A brown powder consisting of I2–CB[6]·4H2O and an orange one of (Br2)4–CB[6]·10H2O were employed in several different reactions. I2–CB[6] can be used in catalytic reactions giving yields comparable to those reported in the literature. Br2–CB[6] was effectively applied in electrophilic bromination of benzene and formation of bromohydrin. However, the radical substitution at cyclohexene could not be performed. Overall, based on these results, several applications can be envisioned for these complexes.
Databáze:	OpenAIRE
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